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<p class="header"><a class="header" href="intro.htm">Orbiter</a> &gt; <a class="header" href="mainmenu.htm">Main menu</a> &gt; Custom functions</p>

<h1>Custom functions</h1>

<p>Orbiter supports plugin modules that allow to extend the core functionality of the simulator (see also <a href="tab_modules.htm">Modules tab</a>). Some of these may provide custom functions, such as dialog boxes, that can be accessed via the <i>Custom functions</i> dialog box. To open this dialog, press <kbd class="ctrl">Ctrl</kbd> <kbd class="ctrl">F4</kbd> or select <i>Function</i> from the main menu (<kbd class="ctrl">F4</kbd>).</p>

<p>The dialog contains a list of all custom functions recognised by Orbiter. If you can't find a particular function, make sure that the corresponding module has been <a href="tab_modules.htm">activated</a>.</p>

<p>Click on a function to see a short description below the list. To activate a function, double-click it or select it and press <i>OK</i>.</p>

<p>The standard Orbiter distribution comes with a set of modules, such as a <i>scenario editor</i>, <i>remote vessel control</i> or <i>MFD window</i>. A lot more 3rd party plugin modules can be downloaded from the Orbiter repositories on the web.</p>

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